how to show the value in parentheses while it is assigned with a minus in the row formula

Hi Asmaa,
To do that you need to create a custom cell formatting.
Please take a look at the following lecture:
https://learn.365datascience.com/courses/introduction-to-microsoft-excel/introduction-to-custom-cell-formatting/
Best,
Ned

thanks a lot for your help
all the best